The reaction A + B→C + D has been studied and found to have the rate law:
Rate = k [A]²[B]. The overall order of the reaction is:

Question

The reaction A + B→C + D has been studied and found to have the rate law: Rate = k [A]²[B]. The overall order of the reaction is:

Quizplus · Accepted Answer

The overall order of the reaction is the sum of the individual reaction orders. Thus, in this case, the overall order is S1+U1+P12+S1+S1+P0=3+U1. Since U1 can be any number (including zero), the overall order can range from 3 (if U1=0) to 4 (if U1=1). Therefore, the only possible answer from the choices given is C, which corresponds to a 3rd order reaction.

The Reaction a + B→C + D Has Been Studied